Objectdatasource onupdating gridview

So if you were like me, trying to find a way for the Insert template to just start magically working, don't waste your time.

You must create this functionality yourself (OH HAPPY HAPPY JOY JOY! It seems like there are only a few controls that support this, like the Detail View control which is excellent for individual records.

The Sql Parameter allows you to define external filter controls that will be combined to generate the filter expression: Notice that the trigger is tied to the Country List control so that the Grid View is updated every time the selected country is changed. This is great when you need to change the type at runtime, or maybe you have written your own methods within the Data Access Layer that you would like to call.

example use: Bound Entity Drop Down Field - As above but derived from Bound Field so that it can be used within a grid (Entity Grid View).Hi Mohyudhin, Actually i tested this for my scenario and its not working when i try to add the grid control itself from code behind instead of declaring it in DOM(HTML). Thanks and regards, Ram Email Id: [email protected] created nested gridview template dynamically with the help of this article which is working perfectly with parent gridview but when i update inner gridview record,we are rebinding parent/child template again and then it will fire inner gridview 'rowcommand' event to update in this case,it will lost the the data which i have entered in controls.so,what to do???? I am posting the solution incase somebody is in search for it. In that case the edit item template update and cancel button events are not firing. Please help me....inception is a 2010 science fiction action heist film which was written, co-produced, and directed by Christopher Nolan. Sql Data Source 命令逻辑由 4 个属性提供:Select Command、Insert Command、Update Command、Delete Command,它们都接收一个字符串(SQL 语句或存储过程名称);与之相应的 Select Command Type、Insert Command Type、Update Command Type、Delete Command Type 也要设置为 Text 或 Stored Procedure (Text 是默认值)。 下面是一个完整的 Sql Data Source ,它定义了从 Employees 表中读取记录的 SELECT 命令: 创建完数据源后,我们可以在设计时绑定控件,而不必在 Page. 严格并发检查 上面的示例更新使用 ID 匹配记录,这样的做法问题在于更新命令会不加选择的更新所有字段,带来的后果是可能会消除其他用户的更新,如果他们的更新介于你请求的页面和更新的页面之间。 第二步是告诉 Sql Data Source 如何命名保持原始值的参数。默认情况下,原始值被赋予和变化了的值相同的参数名称。事实上,它们覆盖了原始参数值。为了避免这一行为,你需要设置 Sql Data Source.Load 事件中编写逻辑了,看图: 智能标签的刷新架构可以促使数据源控件连接数据库并读取查询的信息。 创建一些控件并进行数据绑定,看下效果: 我们知道可以用 Data Reader 或 Data View 来绑定,那么 Sql Data Source 使用的是哪一种呢?其实这决定于 Data Source Mode 的设置。 Data Set 模式几乎总会更好一些。因为它支持 排序、过滤、缓存。 可以对此做个试验。创建一个 Grid View 并绑定到 Sql Data Source ,设置 Grid View 的Auto Generate Edit Button 属性为 true ,一个新列出现在 Grid View 的左边: “更新”链接会把值传送到 Sql Data Source. Old Values Parameter Format String 属性。这个属性接收一个 作为占位符的字符串,其中 指定原始参数名称。例如,如果把 Old Values Parameter Format String 属性设置为 original_(这是一般的习惯),那么具有原始值的参数就会被赋予前缀 original_ 。 如果使用了标准的 Conflict Options(Conflict Options. This is great when you need to change the type at runtime, or maybe you have written your own methods within the Data Access Layer that you would like to call, then you would simply use the Entity Data Source control.The Web Library adds a collection of user interface controls to your toolbox such as the strongly bound repeaters, Entity Grid View, Entity Drop Down List (and bound field version), Bound Radio Button Field, Hyperlink Field, Entity Label and a Grid View Search Panel. NET Entity Data Model โดลคลิกควาที่ Project เลือก Add New Item เลือก ASP.NET Entity Data Model เลือก Yes เพื่อเก็บ Code ไว้ใน App_Code เลือก Generate from database เลือก New Connection เลือก Microsoft SQL Server กำหนด Connection ของ SQL Server เลือก Connection ที่ได้จากการสร้าง เลือก Table ได้ object ชื่อ customer ดังรูป ลาก Entity Data Source มาไว้ใน Web Form เลือก Configure Data Source เลือก Connection ของ Entities เลือกรูปแบบการอ่านข้อมูลจากตาราง ทดสอบกับ Control ของ Grid View ได้ผลลัพธ์เหมือนกับในรูป สำหรับตัวอย่างนี้สามารถใช้ได้ทั้ง VB.Grid View Paging, Sorting and inline Update/Delete First, create a new page and add the following Grid View control: NOTE: It's very important that you specify the Data Key Names property of the Gridview, otherwise, Insert/Update/Delete will not work. Using Microsoft AJAX: Now here comes the fun part, AJAXifying (see dictionary) your grid.As you know Microsoft released an extremely useful AJAX library called Micrsoft AJAX.

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